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<h2><span class="refentrytitle">Struct relaxed</span></h2>
<p>boost::type_erasure::relaxed</p>
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<h2 class="refsynopsisdiv-title">Synopsis</h2>
<div class="refsynopsisdiv"><pre class="synopsis"><span class="comment">// In header: &lt;<a class="link" href="../boost_typeerasure/reference.html#doxygen.relaxed_8hpp" title="Header &lt;boost/type_erasure/relaxed.hpp&gt;">boost/type_erasure/relaxed.hpp</a>&gt;

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<span class="keyword">struct</span> <a class="link" href="structboost_1_1type__erasure_1_1relaxed.html" title="Struct relaxed">relaxed</a> <span class="special">:</span> <span class="keyword">public</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">mpl</span><span class="special">::</span><span class="identifier">vector0</span><span class="special">&lt;</span><span class="special">&gt;</span> <span class="special">{</span>
<span class="special">}</span><span class="special">;</span></pre></div>
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<a name="id-1.3.39.13.31.4.4"></a><h2>Description</h2>
<p>This special concept enables various useful default behavior that makes <a class="link" href="classboost_1_1type__erasure_1_1any.html" title="Class template any">any</a> act like an ordinary object. By default <a class="link" href="classboost_1_1type__erasure_1_1any.html" title="Class template any">any</a> forwards all operations to the underlying type, and provides only the operations that are specified in its <code class="computeroutput">Concept</code>.</p>
<p>In detail, <a class="link" href="structboost_1_1type__erasure_1_1relaxed.html" title="Struct relaxed">relaxed</a> enables the following:</p>
<div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; ">
<li class="listitem"><p>A raw value can be assigned to an <a class="link" href="classboost_1_1type__erasure_1_1any.html" title="Class template any">any</a>. This will replace the value stored by the <a class="link" href="classboost_1_1type__erasure_1_1any.html" title="Class template any">any</a>. (But note that if <a class="link" href="structboost_1_1type__erasure_1_1assignable.html" title="Struct template assignable">assignable</a> is present, it takes priority.)</p></li>
<li class="listitem"><p>assignment of <a class="link" href="classboost_1_1type__erasure_1_1any.html" title="Class template any">any</a> uses the constructor if it can't use <a class="link" href="structboost_1_1type__erasure_1_1assignable.html" title="Struct template assignable">assignable</a> (either because <a class="link" href="structboost_1_1type__erasure_1_1assignable.html" title="Struct template assignable">assignable</a> is missing, or because the stored types do not match).</p></li>
<li class="listitem"><p>default construction of <a class="link" href="classboost_1_1type__erasure_1_1any.html" title="Class template any">any</a> is allowed and creates a null any.</p></li>
<li class="listitem"><p><a class="link" href="structboost_1_1type__erasure_1_1equality__comparable.html" title="Struct template equality_comparable">equality_comparable</a>: If the types do not match, it will return false.</p></li>
<li class="listitem"><p><a class="link" href="structboost_1_1type__erasure_1_1less__than__comparable.html" title="Struct template less_than_comparable">less_than_comparable</a>: If the types do not match, the ordering will be according to <code class="computeroutput">std::type_info::before</code>.</p></li>
<li class="listitem"><p>if the arguments to any other function do not match, it will throw a <a class="link" href="classboost_1_1type__erasure_1_1bad__function__call.html" title="Class bad_function_call">bad_function_call</a> exception instead of having undefined behavior. </p></li>
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<div class="copyright-footer">Copyright © 2011-2013 Steven Watanabe<p>
        Distributed under the Boost Software License, Version 1.0. (See accompanying
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